Apparatus for automatically processing photopolymer plates

Details Apparatus for automatically processing photopolymer plates Apparatus for automatically processing photopolymer plates

1973-08-23

1976-09-21

Braun, Fred L.

Photocopying

Contact printing

Machine

354325, 355 85, G03B 2730

Patent

active

039815838

ABSTRACT:
An apparatus for processing photopolymer plates includes an exposure unit, a washing unit, and a drying unit. The plate, which has a water-developable photopolymer surface, is continuously conveyed through each unit so that the functions therein performed, are done automatically. More particularly, exposure is accomplished by bringing a negative photographic image into alignment with the water-developable photopolymer plate, and then passing light through the negative and onto portions of the plate. Unexposed areas of the plate are then washed away in the washing unit, thus producing a relief surface necessary for letter-press printing. Finally, the photopolymer plate is conveyed to the drying unit where drying and postcuring take place.

REFERENCES:
patent: 2404138 (1946-07-01), Mayer
patent: 2555874 (1951-06-01), Coughlin
patent: 2677320 (1954-05-01), Coughlin
patent: 3085488 (1963-04-01), Heiart
patent: 3230857 (1966-01-01), Ritzerfeld et al.
patent: 3271226 (1966-09-01), Staehle et al.
patent: 3608464 (1971-09-01), Harrell et al.
patent: 3751164 (1973-08-01), Miller et al.
patent: 3848998 (1974-11-01), Yonekura et al.

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